Senior Software Engineer

FYNXT; Surat; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

FYNXT is seeking an experienced Java backend developer to design, build, and maintain scalable SaaS services. You will create RESTful APIs and gRPC services, implement microservices, and work across cloud platforms using Docker and Kubernetes.

Strong data storage knowledge (SQL/NoSQL) and performance optimization are essential. You will collaborate with frontend, DevOps, QA, and product teams to deliver end-to-end features with robust security (OAuth, JWT) and monitoring via Prometheus and

Qualifications

• 5-8 years of Java backend development experience in SaaS or product-based environments.
• Strong REST API development experience; good knowledge of gRPC is a plus.
• Hands-on with microservices and event-driven architectures; Kafka or RabbitMQ is beneficial.
• Solid SQL and NoSQL experience; proficient in data modeling and query optimization.
• Experience with cloud platforms (AWS, GCP, or Azure) and container tech (Docker, Kubernetes).
• Familiar with CI/CD, version control, and basic DevOps practices.
• Good problem-solving skills and emphasis on clean, maintainable code.

Responsibilities

• Backend design, development, and maintenance of scalable SaaS services.
• Build and maintain RESTful APIs and gRPC services with clear docs.
• Develop microservices and distributed systems using Spring Boot / Quarkus.
• Manage SQL/NoSQL databases; ensure efficient data storage and queries.
• Deploy on cloud platforms using Docker and Kubernetes; monitor performance.
• Implement caching and security best practices (OAuth, JWT).
• Collaborate with frontend, DevOps, QA, and product teams to deliver features.

Skills

Java backend development

REST API development

gRPC

Microservices architecture

SQL databases

NoSQL databases

Cloud platforms

Docker

Kubernetes

Performance optimization

Security (OAuth, JWT)

CI/CD

Monitoring & logging

Tools

Prometheus

Grafana

Git

Kafka

RabbitMQ

Job description

Role & responsibilities

• Backend Development: Design, develop, and maintain scalable backend services using modern Java for a multi-tenant SaaS platform.
• API Development: Build and maintain RESTful APIs and gRPC services with clear documentation and high performance.
• Microservices & Distributed Systems: Develop and support microservices and event-driven architectures using frameworks such as Spring Boot and Quarkus.
• Database Management: Work with SQL databases (PostgreSQL, MySQL) and NoSQL databases (Cassandra, Redis) to ensure efficient data storage and retrieval.
• Cloud & Containerization: Deploy and manage applications on cloud platforms (AWS / GCP / Azure) using Docker and Kubernetes.
• Performance Optimization: Analyze performance bottlenecks, optimize queries, and implement caching strategies (Redis, Memcached).
• Security Best Practices: Implement authentication and authorization mechanisms (OAuth, JWT) and follow data security best practices.
• Collaboration: Work closely with frontend, DevOps, QA, and product teams to deliver high-quality end-to-end features.
• Monitoring & Support: Assist in setting up logging, monitoring, and alerting using tools like Prometheus and Grafana.
• Code Quality: Participate in code reviews, testing, and CI/CD processes to ensure maintainable and reliable code.

Preferred candidate profile

• 5-8 years of experience in Java backend development, preferably in SaaS or product-based environments.
• Strong experience in REST API development; working knowledge of gRPC is a plus.
• Hands-on experience with microservices architecture and message brokers such as Kafka or RabbitMQ.
• Solid understanding of SQL and NoSQL databases, including schema design and query optimization.
• Experience with cloud platforms (AWS, GCP, or Azure) and container technologies (Docker, Kubernetes).
• Familiarity with CI/CD pipelines, version control, and basic DevOps practices.
• Good problem-solving skills with an eye for clean, maintainable, and efficient code.